Mawson 12Z 150hPa height 1955 - - - - - - - - - - - - 1956 - - - - - - - - - - - - 1957 - - - - - - - - - - - - 1958 - - - - - - - - - - - - 1959 - - - - - - - - - - - - 1960 - - - - - - - - - - - - 1961 - - - - - - - - - - - - 1962 - - - - - - - - - - - - 1963 - - - - - - - - - - - - 1964 - - - - - - - - - - - - 1965 - - - - - - - - - - - - 1966 - - - - - - - - - - - - 1967 - - - - - - - - - 12573.4 12916.4 13157.6 1968 13201.6 13197.9 13074.0 - - - - - - - - - 1969 - - - - - - - - - - - - 1970 - - - - - - - - - - 12993.2 13086.8 1971 13362.4 13259.0 13053.5 - - - - - - 12528.1 12885.9 13213.0 1972 13262.1 13160.8 13043.3 - - - - - - 12590.0 12794.6 13156.9 1973 13228.6 13179.6 12982.8 - - - - - - 12482.9 12726.1 13071.3 1974 13226.3 13164.0 12989.0 12879.3 12736.2 12584.4 12440.7 12415.7 12376.3 12551.3 12866.9 13187.7 1975 13252.8 13211.2 13082.7 - - - - - - 12462.7 12784.8 13076.7 1976 - - - - - - - - - 12345.9 12932.3 13276.3 1977 13281.1 13147.4 12980.6 - - - - - - 12755.5 12773.8 13096.6 1978 13141.1 13196.2 - - - - - - - - - - 1979 - - 12969.0 12927.5 12595.2 12389.0 12281.6 12268.6 12327.1 12594.0 13012.3 13196.8 1980 13279.6 13254.8 13077.3 12953.5 12760.0 12522.1 12488.6 12451.9 12428.9 12443.3 12813.4 13113.2 1981 13186.6 13233.2 13046.5 12797.6 12647.7 12510.0 12565.8 12480.0 12432.0 12477.4 12759.3 13158.7 1982 13197.0 13141.7 12931.5 12770.3 12592.0 12435.9 12300.0 12277.8 12279.6 12415.7 12986.8 13245.8 1983 13195.8 13129.6 12986.7 12798.7 12657.7 12480.3 12315.7 12272.3 12411.0 12453.0 12654.1 13021.3 1984 13163.9 13133.8 13015.9 12834.6 12802.0 12462.8 12335.5 12377.6 12374.7 12433.3 12763.1 13215.9 1985 13254.3 13102.5 12981.3 12932.7 12658.7 12558.0 12345.7 12310.0 12314.3 12389.7 12603.0 12953.7 1986 13198.7 13245.4 13061.7 12802.0 12693.3 12547.5 12381.3 12334.0 12296.7 12478.4 12703.3 12981.6 1987 13245.5 13111.1 13005.2 12856.3 12614.3 12532.0 12442.3 12181.7 12269.0 12452.9 12697.5 12938.6 1988 13243.0 13080.9 13016.4 12805.6 12706.4 12627.4 12282.7 12319.2 12516.7 12631.7 12852.1 13142.9 1989 - - - - - - - - - - - - 1990 - - - - - - - - - - - - 1991 - - - - - 12638.0 12526.7 12406.5 12376.8 12518.1 12832.5 13297.6 1992 13206.2 13184.4 13049.3 12916.3 12839.5 12725.9 12374.7 12275.5 12265.5 12467.4 12734.7 12970.8 1993 13175.0 13136.5 12965.7 12810.4 12607.7 12454.0 12433.8 12285.4 12377.7 12521.4 12659.6 12926.2 1994 13102.1 13090.8 12902.7 12843.8 12699.4 12730.2 12472.3 12316.6 12327.4 12479.2 12825.6 12994.5 1995 13133.4 13160.0 12991.7 12895.4 12631.7 12463.2 12520.6 12406.1 12253.8 - - 13035.3 1996 13133.3 13138.3 12985.7 12867.7 12573.3 12621.9 12512.0 12479.9 12636.4 12482.2 12768.9 13048.5 1997 13215.0 13174.4 12949.8 12877.2 12663.4 12560.1 12312.6 12366.4 12354.6 12446.0 12945.1 13096.8 1998 13140.7 13069.9 12984.1 12713.6 12632.1 12554.9 12411.2 12286.2 12403.4 12461.6 12617.8 12866.4 1999 13124.7 13102.1 12943.2 12666.2 12639.5 12649.5 12330.8 12358.2 12442.7 12375.3 12642.4 12692.2 2000 13057.6 13063.8 12888.6 12872.7 12573.3 12616.9 12414.3 12368.8 12471.2 12471.8 12808.3 13157.6 2001 13210.4 13186.1 13001.1 12791.5 12697.7 12573.3 12463.0 12273.3 12293.2 12404.5 12569.1 12898.0 2002 13142.5 13082.8 13051.8 12918.5 12872.8 12634.0 12510.8 12371.8 12456.4 12853.1 12851.8 13102.7 2003 13239.6 13169.5 13027.4 12803.5 12651.2 12575.3 12372.5 12335.2 12354.6 12420.6 12797.0 13116.3 2004 13202.9 13216.3 12971.2 12846.0 12662.4 12484.7 12250.4 12256.9 12315.4 12522.6 12718.0 - 2005 - - - - - - - - - - - - 2006 - - - - - - - - - - - - 2007 - - - - - - - - - - - - 2008 - - - 12938.7 12740.9 12472.2 12455.4 12261.0 12370.3 12360.3 12657.4 12877.0 2009 13125.3 13136.3 13020.3 12817.4 12712.8 12762.2 12473.9 12404.7 12412.4 12467.4 12929.3 12999.6 2010 13247.6 13234.6 12980.4 12773.2 12591.7 12366.3 12249.8 12230.2 12391.2 12432.5 12653.2 13016.1 2011 13254.9 13154.1 12974.2 12919.3 12668.5 12626.4 12500.0 12480.4 12407.5 12511.2 12778.9 12869.5 2012 13024.9 13124.9 12961.9 12843.7 12639.9 12481.5 12350.3 12391.8 12338.1 12554.3 13006.5 13180.3 2013 13202.5 13146.4 12964.0 12792.6 12566.3 12598.9 12399.4 12477.1 12535.9 12564.9 13009.2 13153.9 2014 13180.5 13137.1 13006.2 12746.3 12745.4 12545.1 12348.0 12314.6 12425.9 12476.5 12760.3 12931.5 2015 13155.4 13093.3 12960.0 12747.2 12665.5 12479.1 12345.6 12286.6 12325.8 12503.8 12672.8 12875.2 2016 13038.0 13090.6 12976.5 12791.0 12613.5 12460.0 12352.8 12485.5 - - 12934.7 13071.6 2017 13241.1 13133.9 12940.0 12754.5 12654.5 12452.2 12469.2 12284.4 12380.8 12551.4 12820.6 13096.8 2018 13270.9 13172.5 13040.0 12907.1 12587.6 12666.2 12373.3 12394.3 12275.0 - 12680.7 13087.3 2019 13175.9 13148.3 13016.0 12886.7 12680.0 12544.0 12460.7 12303.7 12411.7 12766.4 13009.2 13226.0 2020 13244.0 13132.9 13062.3 12890.8 12662.0 12528.9 12463.6 12377.3 12392.5 12450.0 12715.9 12856.1 2021 13040.0 13029.3 13065.0 12794.4 12570.0 12420.0 12377.0 12303.1 12351.8 12422.6 12637.5 12831.6 2022 13165.3 - 12990.7 12813.9 12627.9 12547.1 12399.4 12371.2 12230.0 12456.7 12626.0 12766.4 2023 13046.5 13093.3 13140.0 12876.5 12681.8 12456.4 12366.0 12331.7 12436.4 12485.3 12616.3 12994.4 2024 13062.2 13132.7 12939.5 12805.5 - - - - - - - -